abce4a2b36
Kernel commit [1] introduced MSM GPU driver header generation with a Python script. This commit was first included in v6.10. This driver is also enabled as a module in the arm64 architecture default configuration. See [2]. This is a common situation. This missing dependency is not detected in the Buildroot CI, because the reference docker image contains a python3 interpreter. See [3]. For information, the Linux latest kernel version was updated in Buildroot commit2b6dba00b"linux: bump latest version to 6.10". See [4]. The issue can be observed by running the following commands on a host without the python3 interpreter installed: cat <<EOF >.config BR2_aarch64=y BR2_LINUX_KERNEL=y BR2_LINUX_KERNEL_USE_ARCH_DEFAULT_CONFIG=y BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL=y BR2_TOOLCHAIN_EXTERNAL=y EOF make olddefconfig make linux The Kernel build fails with output: GENHDR drivers/gpu/drm/msm/generated/a2xx.xml.h /bin/sh: 1: python3: not found make[7]: *** [drivers/gpu/drm/msm/Makefile:176: drivers/gpu/drm/msm/generated/a2xx.xml.h] Error 127 This commit fixes this issue by introducing a new BR2_LINUX_KERNEL_NEEDS_HOST_PYTHON3 configuration that will need to be selected in relevant situations. [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=0fddd045f88e34d6160785a3a5e506d374566454 [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/arch/arm64/configs/defconfig?h=v6.10.8#n868 [3] https://gitlab.com/buildroot.org/buildroot/-/blob/2024.08-rc3/support/docker/Dockerfile?ref_type=tags#L40 [4]2b6dba00beReported-by: Vincent Stehlé <vincent.stehle@arm.com> Signed-off-by: Julien Olivain <ju.o@free.fr> Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>